Plate valve



Nov. 4,1930. L. R. HU-FF I PLATE VALVE Filed Nov. 22, 1928 INVENTOR. Lealz'e REM/f :PHWHHH n u wi l HMHUQH J HIS ATTORNEY Patented BI 4 .19 0

IiEsLIE 'RmHUFPQ oF Pr'nLmrsBnnot, new Jnnsnirgnssienoa'ro rneniasoLn-nnnn- COMPANY; OF JERsEYoIT NEW JERSEY, .acoRronnT-roiv or new JERSEY V arnere- VALV g of Application fiIcd l\Toveniber-22Q 1928;. "steel no. 321 ;103.

' This invention'relates to plate valves, but

more particularlyito .improvementsin plate valves of the typein' which the valve plates are pivotedor oscillated on one end for controlling communication between a pumping apparatus, such as a'coinpressor and the elee ment into which the pressure fluid 'is ldis charged H One-object of the invention'is'tomsure the positive retention the valve plates 1n the I valve seat.

- in-part pointed out hereinafter;

p the invention. and in which similarreference characters revfer. tosimilar parts,

construction and maintenance and to reduce the number of parts required in avalve, of

this typeto a minimum.-

] Other, 'o'b'ects will be n part obvious and 1 In the" drawings 'llustratlng Figure 1 is a top plan view of aplate 'yalve constructed in accordance with the practlce of the invention;

Y Figure 2 is a sectional view taken on the line 2-2 in Figure l looking in the direction indicated by the arrows,

Figure 3 is a similar view taken on the l ne 3-3111 Figure 1 looking in the directlon 1ndicated by the arrows, and

Figures is a perspective view of'a valve plate.

'Referrmg more particularly to the draw- Yings,A designates a valve seat n thismmay pass from a compressonpump, or simij applied.

stance of cylindrical form having a passageway or passageways B through which fluid lar machine to which the plate valve may be The valve seat A is provided with a series of grooves Gin one end thereof which may extend entirely across the face of the. valve seat. The grooves G are preferably formed parallel'with respect to each other and may,

asillu strated, have diverging sides D which surround the outlet open ngs Eof the ea sages B to form seating surfaces for flat rigid valve plates F disposed in the'grooves C.

The grooves C are in this instance provided 7 with flat end-surfaces to form supports for the valve plates and'also' for stopplates V The stop platesH grooves C wherein they are disposed. At the ends of the stop plates H are formed heads; K which are of substantially the I same .con

formationfasth'e grooves C.

1 The portions-L offthe'stop plates Heinteron opposite sides to permit of limited oscil- V latory "movement of thevalve platesF betweenfthe seating surfaces D and the stop plates. At the sides of the stop, plates adjacent'the fiat surfaces G are recesses O:

V which extend across the intermediate portion are in thefornroftstrips h of substantially the same length as they;

a I, H: p 5 mediate the he'adsK are suitably recessed Another-object isto reduce the costs-of L of-the stop platesH and from one head K 1 tothe other to form surfaces or shoulders PI on the'stopiplates H which, in theiassen'ibled PCSitiOn ,of ,the plate valveg overliethe sur-c faces Gr and are spaced at a suitable distance therefrom; T Means areprov-idedfor assuring the 'reten-. tion ofthe valve platesF- in the grooves C.

These means are'in the form of hook por+ a 7 tions .orshoulders P on the side of the valve plates and the hook portions preferably form an integral portion ofthe said valve, plates. The hook portionsrl? extend loosely into the space between the surfaces G and P to engage the surfaces, G of the valve stops and thus act as pivots forthe valve plates and Whoreon the said valve plates F are adapted to rock.

,ln ordergthat-the valve plates may be promptly closed. after the discharge of fluid from the.pas sageways B, coil springs Q, are

interposed between the valveplates F and the stop plates Preferablythe stop plates n are provided with s'ockets R intowhich the springs Q may becompressedbetween the,

valve plates Fvvhen the valve plates are in,

the open-position. The/sockets R thus server as springseats for the springs and the springs Q, are held againstfrelative movement with respect to the valve plates F by means 'ofbuttons" or knobs'S on the valve plates With as be n i te r e o o h valve"plates"or may be separate pieces and secured to the valve plates in any suitable and convenient manner.

At the juncture of the intermediate portion L of the stop plate H and the heads K are lateral shoulders T which cooperate with the ends of the valve plates F .for preventing excessive longitudinal movement of the valve plates F. with respectto the seating surface D. 1

From the foregoing-description', it will be observed that the valve plates will at all times be adequately held against any form of movement relatively to the valve seats A other than the opening movement which will 7 be impart-ed thereto by the pressure of the: fluid flowing through the passageways B and the reverse movement resulting from the pressure of the springs Q for closing'the valveplates. This is accomplished; without resorting to the use of cumbersome and costly retainingmeansbut by an integralv portion of the valve plate. Due tothis form of construction the valve plates may be readily held in the desired assembled positions, and fluid tight seating surfaces between the valve plates and their-seats will therefore be as sured. i

I claim:

1. In a plate'valve assembly,'the combination of a valve seat having grooves therein and passageways in the valve seat opening into the grooves, stop plates in the grooves, diverging sides in the grooves to forinseating surfaces around the outlet openings of the passageways, rigid valve plates in the grooves cooperating. with the seating surfaces for controlling the passageways, means integral with the valve plates and engagingthe stop plates for retaining the valve platesin the groovesfand springs interposed between the valve plates'and the stop plates for closing thevalve plates.

2. Ina plate valve assembly, thecombinm tion of a valve seat having grooves therein and passageways in the valve seat opening into the grooves,stop platesin the grooves, diverging sides in the grooves to form seating surfaces around the outlet openings of the passageways, rigid valve platesin the grooves cooperating with theseating surfaces for controlling the passageways,shoulders-near the ends of the stoprplates forming abutments for the ends of the valve-plates to limitlongitndinal movement of said'valve plates in thegrooves. hook portions on the valveplates extending loosely between the stop plates and thebottoms of theigrooves: andengaging the stopplates foraretaining thevalve zplates in .the grooves and to .form= pivots for they valve plates, and springs .seat-.

'edon the stop plates and the valve plates for;

closing saidvalve plates. v 7 H 3. In a plate valve assembly, the combinas tion of a valve. seat having grooves therein, and passageways .in the valve. seat opening.

into the grooves, said grooves having inclined surfaces to form valve seats, stop plates in the grooves having shoulders near their ends and having recesses to form spaces between the said stop plates and the bottoms of the grooves, rigid valve plates in the grooves adaptedto seat on the seating surfaces for controlling the passageways, hooks integral with the valve plates and extending loosely into the spaces to formpivots for the valve plates, said hooks beingadaptedzto engage said stop plates for retaining the valve plates in the grooves, and coil springs interposedbetween the stop plates and the valve plates for closing said valve plates.

. 4. In a, plate ,valveassembly, the conibinm tion offa valve seat jhavi'ng grooves therein and passageways inthe valve seat opening into the. grooves, said grooves havingdivergingsides to form inclined-seating surfaces, stop plates in the grooves having recesses in, opposite sides thereof; shoulders at the ends of the recesses, a rigid valve plate in each recess adapted to seat, on theseating surfaces for controlling the passageways, integral hook'portions on the valve extending loosely: between the stop plates and the bottomsof the grooves to retain the valve plates in the grooves and to form pivots for the said valve plates, said valve plates being acaptedfto abut with their ends theshoulders on, the stop plates to prevent endwise movement of the valve plates, and'coilsprings interposed 7 between the stop plates andthe valve plates for closing said-valve plates.

In testlmony whereof Ifhave signed this specification: I V

I LESLIE R. 

